Hi,
[UPDATE] Small adjustment of Vision Reality to 1.4.2.1 for Pure gamma 2.51 New link in the description
AC Vision Reality 1.4.2.1 release for Pure Gamma 2.51.
This version has been optimized on versions 0.2.7 preview1 of CSP and 2.51 of Pure Gamma.
The main optimization of this version is auto-exposure and glare effect when facing the sun but also some minor improvements.
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Installation:
Copy the two folders "extension" and "system" found in AC Vision Reality 1.4.2.1.zip/rar to the root of the Assetto Corsa folder then launch Content Manager and follow the steps in numerical order as on the screen.
1 - Configure CSP in Content Manager
2 - Select AC Vision Reality 1.4.2.1 in Content Manager
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In-game configuration 1:
Open "Pure PP" and verify that the settings have been loaded correctly
If loaded correctly you should have this in the "Light" tab
If is not, click on "IMPORT" then load the "AC Vision Reality 1.4.2.1" file located in: X:\SteamLibrary\steamapps\common\assettocorsa\extension\config-ext\Pure\AC Vision Reality 1.4.2.1
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In-game configuration 2:
In game make sure the exposure is 100%

Then i strongly recommend that you open "Pure PP" -> "General" tab and try to change the color temperature values then the saturation because it also depends on the configuration of your screen and it can change a lot. My settings were made on a 4k QLed TV.

Example: screenshot 6500k temperature (default)
Screenshot 5500k temperature
Screenshot 7500k temperature 
The auto-exposure may not load correctly, you just have to check "VAO Adaption" “AE + CBE” and put “5.500 in Target” and “0.950 in Mix” then save.

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Optional: Neck FX and helmet
Neck FX: You must download the "AC head-physics" mod which is in version 2.2.3 to date which is available on OverTake (a free or paid account is required).
https://www.overtake.gg/downloads/ac-head-physics.68266/
Be careful, only apply my Neck FX parameters after installing the AC head-physics mod and above all make a backup of your parameters before any changes
Helmet:

You will find the download link in the description of this video: https://www.youtube.com/watch?v=V7tkOOeDLKY
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Vision Reality 1.4.2.1 requires and has been tested with CSP 0.2.7 p1 and Pure 2.51
Download links
CSP (Custom Shader Patch): https://www.patreon.com/x4fab
My CSP 0.2.7 p1 settings. make a backup of yours before
MCG
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